I have a computer running Windows 10 Professional and a Windows 10 Pro installation ISO file downloaded from Microsoft website. Yesterday I tried to install Windows 10 Pro onto an external hard drive as Windows To Go (WTG) on this computer. I run Windows To Go Creator from the control panel and chose the external hard drive, however, Windows To Go Creator was unable to find the installation image. At this point I noticed that the Windows To Go Creator only supports creating Windows To Go using the Enterprise of Windows 10. My question is: How to create Windows To Go using Windows 10 Professional Edition?
Windows To Go (WTG) is an enterprise feature of Windows 10/8 Enterprise Edition, this is the reason why we cannot create Windows To Go USB drive using Windows 10 Professional Edition. Now we know that we can only use the Enterprise Edition of Windows to create Windows To Go, unfortunately, most of us don't have the Enterprise edition of Windows 10, so we can't use the Windows built-in Windows To Go Creator application to create Windows To Go USB drive.
Does this means that there is no way to create a Windows To Go USB drive if we only have a Windows 10 Professional Edition? No! You can use the best free Windows To Go Creator software WinToUSB to create Windows To Go from a Windows 10 Professional installation ISO, and it works for Windows 8 Professional and Windows 8.1 Professional too.
Step 1. Connect the USB drive to the computer, then run WinToUSB.
Step 2. Click the 
button, then click the 
button and select the Windows 10 installation ISO file from the open dialog box.
Step 3. WinToUSB scans for and lists installable operating systems in the Windows 10 installation ISO. Please select the Windows 10 Professional edition, then click "Next".
Step 4. Select the destination USB drive in the drop-down list. If the USB drive is not correctly recognized by WinToUSB, you need to click the 
button for the program to recognize the USB drive.
Step 5. A pop-up will appear asking you if you want to format it to continue, select the partition scheme you want to use and click "Yes" to format it. If you choose "Keep the existing partition scheme", you need to manually prepare the partitions on the USB drive before this step, and here is the user guide on how to manually prepare partitions for Windows To Go. Please note that the "Keep the existing partition scheme" option is valid only for an external disk.
Step 6. Select the system partition and boot partition from the partition list, the selected partitions will be marked as red, then click "Next".
Step 7. After clicking "Next", WinToUSB begins installing Windows 10 to the USB drive.
Step 8. It takes some time to install. After installation restart the computer and change BIOS to boot from your USB drive.
Step 9. Windows 10 Professional edition normal installation starts up and you have to complete all the installation steps. After that, you can install programs, copy files, etc.
Follow these simple steps, you can easily create a Windows To Go USB drive from Windows 10 Professional installation ISO by using WinToUSB. Now you can carry this Windows 10 Professional To Go USB drive to anywhere and use it on any computer.
